他说“我们不知道光照量，合适的波长，照射面积，或者光照时间长短”。

"We don't know the dose of photosynthesizer needed, the proper wavelength of light, the amount of area to be exposed, or the length of light exposure, " he said.

youdao

塞弗星温度不高，但是维迪依瑟运行在距它很近的轨道上。天气好的时候光照量相当可观。

Saiph is not a very hot star, but Vedius orbits it rather closely, so that sunlight, when available, is appreciable.

youdao

这意味着南半球和北半球会在一年的不同时间段朝向太阳或背向太阳，引起接受的光照量的变化和并产生季节变化。

This means the northern and southern hemispheres will sometimes point toward or away from the sun depending on the time of year, varying the amount of light they receive and causing the seasons.

youdao